Affiliation: | 1. Chair of Molecular Physics, Faculty of Physics, Yerevan State University, 1 Alex Manoogian str., 375025 Yerevan, Armenia, Phone: (374) 60-710-333angay@ysu.am;3. Chair of Molecular Physics, Faculty of Physics, Yerevan State University, 1 Alex Manoogian str., 375025 Yerevan, Armenia, Phone: (374) 60-710-333 |